CVE-2026-29138

SEPPmail Secure Email Gateway before version 15.0.3 allows attackers with a specially crafted email address to claim another user's PGP signature as their own...

CVE-2026-29131

SEPPmail Secure Email Gateway is affected up to version 15.0.3. A vulnerability in the PGP decryption recipient handling allows attackers who can craft a recipient email address to read emails encrypted for other users. The issue is identified as CVE-2026-29131. Connected sources corroborate the ...

CVE-2026-29131 PGP Decryption Recipient LDAP Injection

SEPPmail Secure Email Gateway before version 15.0.3 allows attackers with a specially crafted email address to read the contents of emails encrypted for other users...

CVE-2026-29137 Long Subject Untagging

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to hide security tags from users by crafting a long subject...

CVE-2026-29137

Affected product: SEPPmail Secure Email GatewayVulnerability: An attacker can hide security tags from users by crafting a long subject, affecting versions prior to 15.0.3.Root cause/impact: The long subject enables evasion of displayed security tags; CVSS metrics indicate medium severity with net...

CVE-2026-29137

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to hide security tags from users by crafting a long subject...

CVE-2026-29141 Bounded Subject Tag Sanitization

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to bypass subject sanitization and forge tags such as signed OK...

CVE-2026-29141

The CVE affects SEPPmail Secure Email Gateway prior to version 15.0.3 . The issue is an insufficient subject sanitization that allows an attacker to forge tags such as [signed OK] . Documented impact shows no confidentiality impact, but potential integrity impact (subsequent) is HIGH ; attack vec...

CVE-2026-29135

SEPPmail Secure Email Gateway is affected by CVE-2026-29135: versions prior to 15.0.3 allow an attacker to craft a password-tag that bypasses subject sanitization. The issue concerns the password-tag handling in the webmail/processing flow (no explicit exploit details provided in the documents). ...

CVE-2026-29140

CVE-2026-29140 affects SEPPmail Secure Email Gateway prior to version 15.0.3. The issue allows an attacker to cause attacker-controlled certificates to be used for future encryption on a victim by inserting those certificates into S/MIME signatures. The root cause is not explicitly broken out bey...

CVE-2026-29140 S/MIME Signature Additional Certificate

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to cause attacker-controlled certificates to be used for future encryption to a victim by adding the certificates to S/MIME signatures...

CVE-2026-29133

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to upload PGP keys with UIDs that do not match their email address...

PT-2026-29697

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to cause attacker-controlled certificates to be used for future encryption to a victim by adding the certificates to S/MIME signatures...

CVE-2026-29144: Improper Input Validation

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to bypass subject sanitization and forge security tags using Unicode lookalike characters...

SEPPmail Secure Email Gateway 安全漏洞

SEPPmail Secure Email Gateway is an email security gateway developed by the German company SEPPmail. Versions of SEPPmail Secure Email Gateway prior to version 15.0.3 contained security vulnerabilities. These vulnerabilities stemmed from a flaw that allowed attackers with specially crafted email...

CVE-2026-29133: Improper Input Validation

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to upload PGP keys with UIDs that do not match their email address...

CVE-2026-29132: Missing Authentication for Critical Function

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker with access to a victim's GINA account to bypass a second-password check and read protected emails...

CVE-2026-29139: Authentication Bypass Using an Alternate Path or Channel

SEPPmail Secure Email Gateway before version 15.0.3 allows account takeover by abusing GINA account initialization to reset a victim account password...

CVE-2026-29141: Improper Input Validation

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to bypass subject sanitization and forge tags such as signed OK...

CVE-2026-29137: Improper Input Validation

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to hide security tags from users by crafting a long subject...